Objective To evaluate purification efficacy of electronic air cleaner.

目的了解电子空气净化机净化空气效果。

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In electronic industry, they serve as the surface treatment of wax matrix and metal cleaner. Besides, they can be used as finish milling fluid for optical instrument.

在电子工业上可用于蜡模的表面处理和作为金属清洗剂，此外可作为光学仪器的精磨液等。

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Methods Field experimental observation on purification efficacy of electronic air cleaner on particle and natural bacteria in the air was made.

方法采用现场实验观察电子空气净化机对可吸入颗粒、空气中自然菌的净化效果。

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Shark floor-cleaning devices, owned by Euro-Pro Operating LLC, overhauled the design of its electronic Sonic Duo floor cleaner, set to launch in April, after tests revealed how strenuously some people used it.

WSJ: Cleaning Products Get Stronger Even Though Scrubbers Insist On Using Elbow Grease

First, not only is distributed generation cleaner and more efficient, but to make it work requires elaborate electronic-control systems that will result in the commercialisation of the electronic home and business.

ECONOMIST: Letters